Vco And Rx Adjustment Specification; Tx Adjustment Specification - Alinco DR-135 Service Manual

2) VCO and RX Adjustment Specification

ITEM
Adjustment
146.00MHz
Frequency
TX
VCO 136.00MHz
RX
Adjustment
VCO 173.99MHz
Confirmation RX
Rx Signal 146.05MHz
Sensitivity
Adjustment
136.05MHz
146.05MHz
173.95MHz
146.05MHz
Squelch
SSG OFF
Adjustment
Indication 01
146.05MHz
S Meter
SSG20dBu 1KHz
Adjustment
3.5KHz/DEV

3) Tx Adjustment Specification

IT E M
HI POWE R 1 4 6 .0 0 MHz
Adj ustment HI POWE R
1 4 6 .0 0 MHz
MID POWE R
Adj ustment MID POWE R
L OW POWE R 1 4 6 .0 0 MHz
C onfirmation L OW POWE R
Max imum 1 4 6 .0 0 MHz
Deviation MOD 1 KHz4 0 mVemf
Adj ustment NARROW
1 4 6 .0 0 MHz
Mic G ain
MOD 1 KHz4 mVemf
Adj ustment
WIDE
1 4 6 .0 0 MHz
C T C S S
8 8 .5 Hz
Modulation L evel
C onfirmation
DC S 1 4 6 .0 0 MHz
Modulation L evel 2 5 5 C ode
C onfirmation
1 7 5 0 Hz
1 4 6 .0 0 MHz
Modulation L evel
1 7 5 0 Hz
C onfirmation
DT MF
1 4 6 .0 0 MHz
Modulation L evel
DT MF
C onfirmation
Press the V/M key
during T X
3 0
CONDITION UNIT
MAIN
MAIN
MAIN
MAIN
MAIN
MAIN
C ONDIT ION
MAIN
MAIN
MAIN
MAIN
MAIN
MAIN
MAIN
MAIN
MAIN
ADJ. SPOT
Adjust so that Tx Frequency
TC101
becomes within 146.00MHz±100Hz
L123 Adjust so that PD voltage becomes 1.5V
Confirm if PD voltage becomes less
than 7.3V
L105, L104
Repeatedly adjust so that the Rx
L103, L102
Sensitivity becomes in maximum.
Confirm:
At -7dBu SINAD more than 12dB
At -8dBu SINAD more than 12dB
At -6dBu SINAD more than 12dB
VR 101
Adjust so that the squelch stops at
perfectly close location
Adjust so that all the indicator appears
VR102
U NIT ADJ . S POT
Other
VR1 0 3
D, DG
VR1 0 4 Other
D,DG
Other
D,DG
VR1 0 5 4 .5 ± 0 .1 KHz/DE V
VR 1 0 6
3 .0 ± 0 .1 KHz/DE V
8 0 0 ± 2 0 0
8 0 0 ± 2 0 0
3 .0 ± 0 .5 KHz/DE V
3 .0 ± 0 .5 KHz/DE V
ADJUSTING METHOD
ADJ U S T ING ME T HOD
Adj ust to 5 0 .0 ± 1 .0 W
Adj ust to 2 0 .0 ± 1 .0 W
Adj ust to 1 0 .0 ± 1 .0 W
Adj ust to 5 .0 ± 1 .0 W
C onfirm if it becomes
4 .0 ± 1 .0 W
C onfirm if it becomes
1 ~2 .5 W
Hz/DE V 3 KHz L PF ON
Hz/DE V 3 KHz L PF ON